I have a note board in a page layout acting like a comment section. I've created a page based on this page layout to display a image slider. The slider is loaded based on an ID that's passed through a query string.
In my development enviroment the note board show specific notes (comments) for each 'url' that I have.
Url: 'http//sps.com/SitePages/slider.aspx?id=123' | Comments: 'foo', 'bar'
Url: 'http//sps.com/SitePages/slider.aspx?id=321' | Comments: 'baz'
Changing the query string changed the notes loaded. Thas fine.
Now, in the production enviroment this two "different" URLs show the same comments, like all comments.
I haven't made any other customization so far. Only activated the feature for the note board webpart in both enviromments.